An Introduction to the study of zoology, illustrated by the crayfishD. Appleton, 1901 - 371 pagini |
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Thomas Henry Huxley. Frontispiece . ] THE COMMON CRAYFISH THE INTERNATIONAL SCIENTIFIC SERIES . AN INTRODUCTION TO THE STUDY. Astacus fluviatilis , Male . ) Astacus fluviatilis , Male . )
Thomas Henry Huxley. Frontispiece . ] THE COMMON CRAYFISH THE INTERNATIONAL SCIENTIFIC SERIES . AN INTRODUCTION TO THE STUDY. Astacus fluviatilis , Male . ) Astacus fluviatilis , Male . )
Pagina
Thomas Henry Huxley. Frontispiece . ) THE COMMON CRAYFISH THE INTERNATIONAL SCIENTIFIC SERIES . AN INTRODUCTION TO THE STUDY. Astacus fluviatilis , Male . ) Astacus fluviatilis , Male . )
Thomas Henry Huxley. Frontispiece . ) THE COMMON CRAYFISH THE INTERNATIONAL SCIENTIFIC SERIES . AN INTRODUCTION TO THE STUDY. Astacus fluviatilis , Male . ) Astacus fluviatilis , Male . )
Pagina ii
Thomas Henry Huxley. Frontispiece . ) THE COMMON CRAYFISH THE INTERNATIONAL SCIENTIFIC SERIES . AN INTRODUCTION TO THE STUDY. Astacus fluviatilis , Male . )
Thomas Henry Huxley. Frontispiece . ) THE COMMON CRAYFISH THE INTERNATIONAL SCIENTIFIC SERIES . AN INTRODUCTION TO THE STUDY. Astacus fluviatilis , Male . )
Pagina xi
... ( MALE ) FIG . 1. Astacus fluviatilis . SIDE VIEW OF THE MALE . PAGE • 6 2 . 99 " " 3 . 99 99 99 4 . 99 99 " 9 • DORSAL VIEWS OF MALE AND FEMALE VENTRAL VIEWS OF MALE AND FEMALE THE GILLS 18 21 26 5 . " " 99 6 . 91 99 99 7 . 99 99 99 8 ...
... ( MALE ) FIG . 1. Astacus fluviatilis . SIDE VIEW OF THE MALE . PAGE • 6 2 . 99 " " 3 . 99 99 99 4 . 99 99 " 9 • DORSAL VIEWS OF MALE AND FEMALE VENTRAL VIEWS OF MALE AND FEMALE THE GILLS 18 21 26 5 . " " 99 6 . 91 99 99 7 . 99 99 99 8 ...
Pagina xiii
... MALE 245 " " 63. Cambarus Clarkii • 248 64. Parastacus brasiliensis . 250 99 65. Astacoides madagascarensis 251 66. DIAGRAM OF THE MORPHOLOGICAL RELATIONS OF THE 99 Astacidæ · 253 99 67. Homarus vulgaris · 258 Parastacus . 38 68 ...
... MALE 245 " " 63. Cambarus Clarkii • 248 64. Parastacus brasiliensis . 250 99 65. Astacoides madagascarensis 251 66. DIAGRAM OF THE MORPHOLOGICAL RELATIONS OF THE 99 Astacidæ · 253 99 67. Homarus vulgaris · 258 Parastacus . 38 68 ...
Termeni și expresii frecvente
abdomen abdominal appendages abdominal somite acid alimentary ambulatory limbs animals antenna antennule aperture appears artery arthrobranchiæ Astacine attached basal joint base become blastomeres blood body branchiæ branchial cavity branchial chamber branchial filaments branchiostegite canal carapace cephalic cephalothorax cervical groove chitinous convex corpuscles coxopodite crayfish Crustacea cuticle cuticular division ecdysis ectoderm ectostracum edge endopodite endosternites epiblast epimeral epipodite exopodite exoskeleton external fact fibres food-yelk forceps front ganglion gastrolith gills gives rise green gland hind-gut hypoblast inner lamina lateral less lobes lobster longitudinal male mandibles maxillipede membrane metameres morphological muscles muscular Nauplius nerve nobilis nucleated cells nuclei organs outer ovum pairs plate pleura podobranchiæ portion posterior present procephalic protopodite region ridge rostrum scaphognathite segments seta setæ side somite species spines stem sternal sternum stomach structure substance surface telson tergal tergum terminal thoracic thoracic limbs thoracic somite tissue transverse wall yelk